chore: a little code cleanup

Author: desht

common/src/main/java/dev/ftb/mods/ftbranks/FTBRanksCommands.java

@@ -1,6 +1,5 @@
 package dev.ftb.mods.ftbranks;
 
-import com.google.common.base.Strings;
 import com.mojang.authlib.GameProfile;
 import com.mojang.brigadier.CommandDispatcher;
 import com.mojang.brigadier.arguments.StringArgumentType;

common/src/main/java/dev/ftb/mods/ftbranks/api/Rank.java

@@ -2,8 +2,8 @@
 
 import com.mojang.authlib.GameProfile;
 import net.minecraft.server.level.ServerPlayer;
+import org.jetbrains.annotations.Nullable;
 
-import javax.annotation.Nullable;
 import java.util.Collection;
 
 /**

common/src/main/java/dev/ftb/mods/ftbranks/api/event/PermissionNodeChangedEvent.java

@@ -3,8 +3,7 @@
 import dev.ftb.mods.ftbranks.api.PermissionValue;
 import dev.ftb.mods.ftbranks.api.Rank;
 import dev.ftb.mods.ftbranks.api.RankManager;
-
-import javax.annotation.Nullable;
+import org.jetbrains.annotations.Nullable;
 
 public class PermissionNodeChangedEvent extends RankEvent {
     private final String node;